Callitriche deflexa

Terrestrial, mat-forming. Leaves spathulate to elliptic, 1.3–3 mm long, 0.5–1.6 mm wide, obtuse, obscurely 3-veined, petiolate; upper leaves not rosetted. Flowers paired, a male and female together in opposite axils; bracteoles absent; stamen 0.4–0.6 mm long, not elongating as fruit ripens, filament shorter than ripe fruit; styles recurved, 0.2–0.8 mm long, persistent. Fruit subcordate, 0.5–0.7 mm long, 0.7–0.9 mm wide, usually pedicellate, not thickened at base, light-brown or reddish-brown maturing to dark brown to black; wing very narrow. Naturalized in Victoria around the margins of lakes, in cracks in pavement, edges of paths and on bare ground in lawn, in the Royal Botanic Gardens in Melbourne. Flowers and fruits throughout the year.